producer [for Tigress Productions], Sarah Williams ; director, Justine Kershaw ; producers [for WNET-Nature], Jessica Siegel, Jill Clarke ; a Tigress production ; a co-production of Thirteen/WNET and the BBC
a co-production of ABC/Kane Productions and the BBC, in association with Trebitsch Produktion International GmbH and PBS ; executive producers, Alex Gregory and Dennis B. Kane ; written by Alex Gregory ; produced by Neil Lucas
produced and directed by Mark Anderson and Charles Bruce ; a coproduction by WGBH/Boston and Brook Associates in association with the BBC and Canal Plus